2 Answers

Bad coils, wires, plugs, relay or fuse. POI, turning over and
cranking are the same thing, meaning the engine rotates or
spins from the starter when the key is turned to the start position.
Catch or fires up is when it actually starts after cranking or turning
over. You need Power fuel and spark for ignition, and you seem
to have fuel, but are not getting power to the spark plugs so you
have a power interruption to them. Any of the things mentioned
above could cause your problem, but more than likely it is not the
wires or plugs if you are not getting a spark at each one. Most
likely a bad coil(s) or burnt out fuse or even a disconnected wire
someplace. Keep us posted.